A base station, a mobile station, a radio communications system, and a radio transmission method using spread spectrum and chip repetition

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EP 2 175 570 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	18.08.2010 Bulletin 2010/33

(43)	Date of publication A2:
	14.04.2010 Bulletin 2010/15

(21)	Application number: 10000738.4

(22)	Date of filing: 04.03.2005

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International Patent Classification (IPC):

H04B 1/707^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

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Priority:

05.03.2004 JP 2004063179

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	08018840.2 / 2017967
	05251321.5 / 1571759

(71)	Applicant: NTT DoCoMo, Inc.
	Chiyoda-ku Tokyo 100-6150 (JP)

(72)	Inventors:
	Goto, Yoshikazu Tokyo 100-6150 (JP) Atarashi, Hiroyuki Tokyo 100-6150 (JP) Sawahashi, Mamoru Tokyo 100-6150 (JP)

(74)	Representative: Maury, Richard Philip
	Marks & Clerk LLP 90 Long Acre London WC2E 9RA London WC2E 9RA (GB)

(54)	A base station, a mobile station, a radio communications system, and a radio transmission method using spread spectrum and chip repetition

(57) A mobile station, comprising: an inputting unit configured to input an information sequence to be transmitted; a generating unit configured to generate a sequence after repetition by performing repetitions for the information sequence input by the inputting unit for a predetermined number of repetitions; and a transmitting unit configured to transmit to a base station the sequence generated by the generating unit; wherein the generating unit determines the number of repetitions based on a kind of a physical channel.

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